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The parcelization of the open range, a conflict in land use : grazing rights versus residential and recreation land sales in Klickitat County, WashingtonOlson, Dennis A. 01 January 1980 (has links)
The threefold question researched herein is: (1) What are the extent and potential economic consequences of land parcelization in Klickitat County?, (2)What are the political and social costs of parcelization?, and (3) What measures today are, or could be, used to ameliorate the land use conflict? These are answered by studying the various aspects of the problem, including the historic land use change, legal mechanisms which regulate livestock grazing and land parcelization; taxation; the economic-effect upon livestock production; crime and social conflict; costs to county services; and environmental impacts. The geography of the change itself is depicted on several maps.
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An Analysis of Vegetation Recovery following Dam Removal at Hemlock Recreation Site, WashingtonRamsey, Greer Stewart 06 August 2014 (has links)
Dam removals are becoming increasingly common as dams reach their life expectancy and face costly upgrades associated with relicensing. Though removal is often viewed as a success in terms of ecological restoration, it also represents a major disturbance to an area. Previous research has shown that native species do not survive as well at these disturbed sites, and invasive species often dominate. This study examines the vegetation response in the drained reservoir area after the removal of Hemlock Dam on Trout Creek, a tributary to the Wind River in southern Washington. Transects were established and quadrats were sampled to determine the plant classifications and cover of vegetation and to examine possible correlations between environmental variables and the spatial distribution of plant classification groups. Sampling took place in the third and fourth years following dam removal, and the data was analyzed to determine significant changes and relationships.
The results of this study showed that the site was dominated by a volunteer native forb Lotus purshianus (Spanish clover) and a planted native tree Alnus rubra (red alder). Most of the other species found were native volunteer forbs and grasses characteristic of early succession in this region. Both invasive species and planted species, with the exception of Alnus rubra, had low canopy covers. There was a significant increase in native plant canopy cover, as well as total canopy cover, from 2012 to 2013. There were also significant relationships between plant classification groups and environmental variables, including soil infiltration, elevation, and distance from stream. This study will help inform resource managers about the kinds of plants that will volunteer after dam removals and the possible success of re-vegetation projects.
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Investigations of Larval Pacific Lamprey Entosphenus tridentatus Osmotic Stress Tolerance and Occurrence in a Tidally-Influenced Estuarine StreamSilver, Gregory Shell 08 June 2015 (has links)
Pacific lamprey is a culturally valuable species to indigenous people, and has significant ecological importance in freshwater and marine ecosystems. Over the past several decades, constrictions in range and reductions in Pacific lamprey abundance have been observed in Western North America, and may be indicators of range-wide declines. In the face of declining populations, the U.S. Fish and Wildlife Service has partnered with tribal, state, federal, and local entities to implement a regional Pacific lamprey conservation agreement aimed at reducing threats to Pacific lamprey and improving their habitats and population status. Research needs identified in the conservation agreement include assessing larval Pacific lamprey occupancy and distribution, habitat requirements, and the limiting factors of larval distribution in the freshwater ecosystem. As part of the effort to address these knowledge gaps, we investigated the potential for larval lampreys to occur in tidally-influenced estuarine environments. Research of this type may be valuable for future conservation, management or recovery efforts of Pacific lamprey throughout its range.
We employed a two-phased approach, consisting of laboratory and field components to address our aims. We first conducted a series of controlled laboratory experiments to evaluate osmotic stress tolerance and osmoregulatory status of larval Pacific lamprey exposed to a range of (1) fixed salinity in various dilutions of saltwater and (2) oscillating salinity treatments designed to simulate tidal activity. Tolerance was assessed by monitoring and comparing survival of larvae in various treatments through 96 h. Osmoregulatory status was assessed by quantifying and comparing total body water content, plasma osmolality, and plasma cation (i.e., sodium) concentrations among larvae surviving various treatments. In fixed salinity experiments, 100% survival was observed in 0‰, 6‰, 8‰ and 10‰ through 96 h, while 0% survival was observed through 48 h in 12‰, 30 h in 15‰, and 12 h in 25‰ and 35‰. In oscillating salinity experiments, on the other hand, a significant increase in survival (100%) was observed through 96 h in treatments that oscillated between 12‰ and 0‰ (freshwater) at about 6 h intervals versus fixed 12‰ salinity experiments. A significant increase in survival also occurred in oscillating 15‰ treatments (60%) versus fixed 15‰ through 96 h. Linear regression analysis indicated higher environmental salinity in laboratory experiments was significantly related to increases in plasma osmolality and plasma sodium (the most abundant osmotically active plasma cation) concentrations, and concurrent decreases in total body water content among larvae that survived various treatments. Tidal oscillations in salinity appeared to temper the desiccating effects of salinity, as changes in body water content and sodium ion concentration were less abrupt than fixed salinity treatments. These results suggest larvae cannot osmoregulate in hyperosmotic environments, but are able to tolerate some fixed and oscillating hyperosmotic salinity exposure. Consequently, larvae may be able to occur in certain areas of estuaries, such as oligohaline habitats that are characterized by low levels of salinity. Experimental results were used, in part, to guide larval sampling in a tidally-influenced habitat.
Occurrence of larval Pacific lamprey and Lampetra spp. (western brook and river lampreys) was subsequently investigated across a gradient of salinity in Ellsworth Creek (Pacific County, Washington) by electrofishing. Larval Pacific and Lampetra spp. were detected within an approximately 300 m long tidally-influenced segment of the study area. Salinity monitoring was conducted in six tidally-influenced reaches where larvae were detected for up to 14 d following electrofishing. Maximum tidal cycle salinity exceeded 15 ppt during 52% to 80% of tidal cycles within tidally-influenced reaches where larvae were detected. These results suggest potential for larval lamprey to occur in certain portions of tidal estuaries. However, long-term residence of larvae in tidally-influenced habitats and whether larvae are able to subsequently survive, grow, transform, and out-migrate is not known and requires further study. Given the potential for tidally-influenced habitats to be occupied by larvae, assessments of larval occurrence in other areas, such as the lower Columbia River, may be warranted. Knowledge of larval lamprey distribution in estuarine environments may be valuable for habitat restoration, and mitigating potential impacts from dredging and other human disturbances.
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Stratigraphy of the Ohanapecosh Formation north of Hamilton Buttes, southcentral WashingtonStine, Cynthia Marie 01 January 1987 (has links)
Over 1055 m of early Oligocene andesitic-dacitic volcaniclastic rocks and minor interbedded andesitic lava flows of the Ohanapecosh Formation are exposed in a dissected structural high in the southern Washington Cascade Range, about 22 km southwest of Packwood, Washington.
The exposed sequence of rocks in the study area are located approximately 250 m above the base of the Ohanapecosh Formation. A lower sequence of deposits, about 350 m in thickness, are dominated by primary and reworked lithic lapilli-tuff and epiclastic channelized volcanic sandstone and conglomerate. These sediments are interpreted as pyroclastic flows and stream deposits, respectively. The upper sequence, about 455 m thick is dominated by volcanic diamictites interpreted as lahars, with minor lithic lapilli-tuff and epiclastic volcanic sandstone.
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Developing and Calibrating the Hydrodynamic and Water Quality Model CE-QUAL-W2 for Banks Lake WashingtonMcCulloch, Andrew John 01 January 2011 (has links)
Located in central Washington State, Banks Lake serves as an irrigation storage reservoir for the Columbia Basin Irrigation Project and is home to a diverse fisheries population. The current hydrologic management strategies used for Banks Lake have been chosen to serve two purposes: to adequately store and provide irrigation water for the Columbia Basin Irrigation Project and to maintain a healthy aquatic environment suitable for the growth and habitation of local flora and fauna. Increased needs for irrigation water within arid central Washington poses additional challenges to reservoir managers so that irrigation needs are met without damaging the present aquatic environment within Banks Lake. Future plans by the Washington Department of Ecology to use Banks Lake storage to replenish ground water reserves of the Odessa Subarea aquifer have required an investigation into how increased seasonal drawdown may affect fish growth, fish habitat and overall limnology of Banks Lake. The goal of this project is to produce a hydrodynamic and water quality model of Banks Lake that can predict the impacts of management strategies on the lake's water quality and the linkage of lake management to fish habitat.
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Identifying Regional Centers in Washington County, OregonRancik, Kevin Christopher 01 January 2011 (has links)
An increasing national focus on problems related to urban sprawl has fueled debate on the best way for urban areas to accommodate increasing populations. Portland, Oregon has attracted international attention for its growth policies, which are among the most stringent in the United States. Metro, the area's regional government in charge of long-range planning, has designated certain locations as regional centers where increased density and development are to occur. A logical question is whether or not these centers are developing as intended; do Metro's plans match reality on the ground? This study of Washington County, Oregon analyzes land value, building volume, road intersection density, and public transportation availability using ArcGIS to locate potential regional centers in the county to answer that question. Subjective criteria are used during field visits to these locations to determine whether potential centers identified in the ArcGIS analysis are truly regional centers. Change over time is analyzed from 2000 to 2010 to see if the variables mentioned above contribute to regional center development. This study's results show Metro's designated regional centers are, in fact, regional centers or emerging regional centers using the above criteria, meaning this aspect of Metro's plans do match reality on the ground. Commercial land value tends to be the strongest indicator of regional centeredness. This study's findings aid in the understanding of urban areas. They help urban planners in their efforts to create viable plans that accommodate population growth and future development.
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The relationship of self concept and other variables to the work value orientation of black females enrolled in inner city vocational schoolsYates, Sandra Elizabeth Grady January 1979 (has links)
The purpose of this study was to examine the relationship of career choice, self concept, and grade level to the work value orientation of black females. More specifically, the study tested the extent to which the relationship among these variables could be shown to exist among a population of females enrolled in inner city vocational schools.
An extensive review of the literature indicated the possibility of determining potential satisfaction of students in specific vocational areas by analyzing some of the basic internal characteristics of the individual while he or she is still in the school environment. In addition, the literature revealed that if vocational educators, in particular, are aware of certain basic characteristics about youth, it is likely that the youth could be helped to become better prepared for the world of work in terms of the personal meaning and value that work is capable of bringing to their lives.
Further, it was found that many of the studies which have been conducted have been done so from a theoretical basis using a specific segment of the population--white middle class males. Research findings therefore, have indicated conflicting views relative to basic characteristics of other groups, i.e., their self concepts, their work value orientations, their satisfaction with work. Of particular interest have been black females who often experience both sex and race discrimination and who face a double disadvantage in the career choice process.
Based on the literature review, this study was initiated to compare samples of black females in three traditionally female vocational areas and at three grade levels by using their mean scores on Part II of the <i>Meaning and Value of Work Scale</i> and the total positive score of the <i>Tennessee Self Concept Scale</i>. The population consisted of black females enrolled in Health Occupations, Occupational Home Economics, and Business and Office Education in the Career Development Centers of the District of Columbia Public Schools. Two hundred fifty nine subjects participated in the study.
Null hypotheses were formulated to determine the relationships between the one dependent variable (work value orientation) and the three independent variables (career choice, self concept, and grade level). A factorial analysis of variance (ANOVA) procedure was utilized to analyze the data; level of significance was set at .05. Where there were significant F values obtained by the ANOVA procedure, the Newman-Keuls post hoc test was used to determine which differences contributed to the significance.
The results of the study revealed that black females enrolled in inner city vocational schools do not clearly indicate tendencies toward either an extrinsic or intrinsic work value orientation. However, there were individual students who distinctly indicated tendencies toward either extreme of the continuum. In addition, the self concepts of the students were found to be below the norm for the instrument used. However, using the norm of the sample group, it was found that their self concepts fell within an average range.
Differences were found in the female's work value orientation on career choice, self concept, and grade level. The post hoc test revealed specific differences in work value orientation of females in home economics, indicating their tendencies toward a more extrinsic work value orientation than the other two groups. Further, the test revealed that females with high self concepts and those in grade 12 tended to differ significantly in terms of work value orientation from the others. These females indicated tendencies toward an intrinsic work value orientation.
Results of the interaction of career choice by grade level, grade level by self concept, and career choice by grade level by self concept failed to reject the null hypotheses. However, the test of the interaction of career choice and self concept did result in the rejection of null hypothesis. / Ed. D.
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A school for danceTimmons, Ruth Louise January 1991 (has links)
This project is a school for dance located in the Northwest of Washington, D.C. It functions mainly as a professional educational center for dance, but also offers classes to the community at night and on weekends. The school will accommodate up to 250 professional students and as many from the community. The community classes help support the school as well as provide students with the opportunity to obtain teaching experience. Opera, previously the main draw for musical performances, has, in recent years, become increasingly expensive to produce. As a result it has become unavailable to many. This has resulted in a rise in the popularity of dance. The decision to design a school for dance was inspired partially by my love for dance and partially by the increased need for such a school. A pinwheel circulation was chosen as an indication of perpetual movement and the school evolved around this idea. Honest, but modest materials were used as is befitting a public school with limited financial resources. The tactile qualities of the materials are important. Materials are rough and informal, as are the students in the initial execution of their art; moving towards refinement and, subsequently, moving on. The accumulation of many small individual units all working together to make a whole is similar to the relationship of the students to the school. Brick is too formal for this school and for this site, so block was chosen. The building takes advantage of every opportunity to interact with the site by providing natural gardens and outdoor places to dance. The paths formed by each leg of the pinwheel are interwoven with the site so that each path is part site, part building. It is important to provide students with informal meeting places in order to increase the possibility of contact with others. This is an important aspect of any school, therefore every opportunity was taken to provide them where possible. The intent was to provide a well composed, well choreographed space that was rich in its sensory offerings and amenable to the study of dance. / Master of Architecture
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An urban pierWaddell, Daniel Wallace McNab January 1986 (has links)
Why is it that when we come across a pier reaching out from a coast we have a desire to walk out on to it... Could it be because a pier gives us something special a place set apart, a place to view the world...
Would it not be a wonderful thing to walk on an urban pier... past the surf of buildings... to an island of gardens... in an urban sea... to view the world a few steps closer... A place to glimpse where we are and where we could be. / Master of Architecture
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An elder care communityMason, Jay Roger January 1992 (has links)
The following exploration represents a search for clarity and meaning in the formative work of a young architectural designer. Solving the design problem to create a viable community of elders integrated into the chosen site was merely the ostensible goal. The deeper task was to become more literate with the materials and tools of the architect's trade and develop a confidence with the language and grammar of architecture.
I wanted to develop an understanding of not just a single building type or a particular site condition, but to grow in more fundamental terms toward learning a way of building. This desire may be inherent in every good design, but I wanted to bring the idea of it to the surface and focus on the principles behind the architectural decisions.
I believe the confidence and vitality which the architect combines with the philosophical, technical and pragmatic constraints of a project to make great architecture are products of a thorough understanding of one's personal beliefs. My own attempt to organize thoughts and attitudes into a body of reference toward an understanding of that belief structure follows on the remaining pages. In the process as well as in the final result I have moved closer to a literacy in architecture, if only by gaining insight into the motivations which have guided my hand. / Master of Architecture
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